#btnbox{
    width:88%;
    position: absolute;
    top:6.8rem;
    left:6%;
  }
.btn{
box-shadow: 0px 5px 50px #ccc;
border-radius: 1rem;
line-height: 0.7rem;
height:0.7rem;
text-align:center;
width:2.2rem;
font-size: .24rem;
color:#fff;
position: absolute;
top:0;
border:none;
}

.btnA{
left:0;
background: #FE6967;
}

.btnB{
right:0;
background:#688BFF;
}
.timer{
    position: relative;
    border-radius: 100%;
    height: 0.7rem;
    width:  0.7rem;
    line-height:0.7rem;
    text-align:center;
    color:#ccc;
    margin:0 auto;
    box-shadow:5px 5px 50px #ccc;
}
